{"id":27282,"date":"2021-12-16T00:00:00","date_gmt":"2021-12-16T00:00:00","guid":{"rendered":"https:\/\/c01.purpledshub.com\/bbcskyatnight\/?p=27282&preview=true&preview_id=27282"},"modified":"2022-01-11T15:54:07","modified_gmt":"2022-01-11T15:54:07","slug":"an-orbit-in-less-than-a-day","status":"publish","type":"post","link":"https:\/\/c01.purpledshub.com\/bbcskyatnight\/2021\/12\/16\/an-orbit-in-less-than-a-day\/","title":{"rendered":"An orbit in less than a day"},"content":{"rendered":"\n

This speedy planet could be spiralling in towards its star<\/p>\n\n

\"\"
Due to its close proximity to its star, the day side of TOI-2109b has a temperature that is estimated to be 3,220\u02daC<\/figcaption><\/figure>\n\n

A newly discovered <\/strong>planet has a \u2018year\u2019 that is just 16 hours long, the quickest orbit of any so-called \u2018hot-Jupiter\u2019 \u2013a gas giant with an extremely short orbit \u2013 ever discovered.<\/p>\n\n

The planet, TOI-2109b, was discovered by the exoplanethunting satellite TESS. It is around five times the mass of Jupiter and just 2.4 million km away from its star. Its course is so tight that the planet is probably in a \u2018decaying orbit\u2019 and spiralling in towards its star at the centre of its system.<\/p>\n\n

\u201cIn one or two years we may be able to detect how the planet moves closer to its star,\u201d says Ian Wong, who led the study at the Massachusetts Institute of Technology. \u201cIn our lifetime we will not see the planet fall into its star. But give it another 10 million years, and this planet might not be there.\u201d https:\/\/tess.mit.edu\/<\/a><\/p>\n\n

Photo: ILLUSTRATION, NASA\u2019s Goddard Space Flight Center<\/p>\n","protected":false},"excerpt":{"rendered":"

This speedy planet could be spiralling in towards its star<\/p>\n","protected":false},"author":5420,"featured_media":27285,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"ub_ctt_via":"","purple_page_number":"","purple_custom_meta_purple_page_number":"","purple_seq_number":"","purple_custom_meta_purple_seq_number":"","purple_source_article":"","purple_custom_meta_purple_source_article":"","purple_source_issue":"","purple_custom_meta_purple_source_issue":"January-2022","purple_external_id":"","purple_custom_meta_purple_external_id":"January-2022-2579b011-d0ed-4305-b6ad-d155cf3b76b1","purple_issue_code":"","purple_custom_meta_purple_issue_code":"|0000086548||","purple_android_product":"","purple_custom_meta_purple_android_product":"com.im.skyatnight.200","purple_ios_product":"","purple_custom_meta_purple_ios_product":"com.im.skyatnight.200","purple_web_product":"","purple_custom_meta_purple_web_product":"","purple_publication_id":"","purple_migrated":"","kt_blocks_editor_width":""},"categories":[19],"tags":[],"featured_image_src":"https:\/\/c01.purpledshub.com\/uploads\/sites\/77\/2021\/12\/FF5J0A79Y93HF2H38G3VK6E8F8U1-1.jpg","author_info":{"display_name":"maya.hack@immediate.co.uk","author_link":"https:\/\/c01.purpledshub.com\/bbcskyatnight\/author\/maya-hackimmediate-co-uk\/"},"acf":{"readingTimeMinutes":"< 1","apple_news_title":""},"uagb_featured_image_src":{"full":["https:\/\/c01.purpledshub.com\/uploads\/sites\/77\/2021\/12\/FF5J0A79Y93HF2H38G3VK6E8F8U1-1.jpg",1916,1277,false],"thumbnail":["https:\/\/c01.purpledshub.com\/uploads\/sites\/77\/2021\/12\/FF5J0A79Y93HF2H38G3VK6E8F8U1-1-150x150.jpg",150,150,true],"medium":["https:\/\/c01.purpledshub.com\/uploads\/sites\/77\/2021\/12\/FF5J0A79Y93HF2H38G3VK6E8F8U1-1-300x200.jpg",300,200,true],"medium_large":["https:\/\/c01.purpledshub.com\/uploads\/sites\/77\/2021\/12\/FF5J0A79Y93HF2H38G3VK6E8F8U1-1-768x512.jpg",768,512,true],"large":["https:\/\/c01.purpledshub.com\/uploads\/sites\/77\/2021\/12\/FF5J0A79Y93HF2H38G3VK6E8F8U1-1-1024x682.jpg",800,533,true],"1536x1536":["https:\/\/c01.purpledshub.com\/uploads\/sites\/77\/2021\/12\/FF5J0A79Y93HF2H38G3VK6E8F8U1-1-1536x1024.jpg",1536,1024,true],"2048x2048":["https:\/\/c01.purpledshub.com\/uploads\/sites\/77\/2021\/12\/FF5J0A79Y93HF2H38G3VK6E8F8U1-1.jpg",1916,1277,false]},"uagb_author_info":{"display_name":"maya.hack@immediate.co.uk","author_link":"https:\/\/c01.purpledshub.com\/bbcskyatnight\/author\/maya-hackimmediate-co-uk\/"},"uagb_comment_info":0,"uagb_excerpt":"This speedy planet could be spiralling in towards its star","_links":{"self":[{"href":"https:\/\/c01.purpledshub.com\/bbcskyatnight\/wp-json\/wp\/v2\/posts\/27282"}],"collection":[{"href":"https:\/\/c01.purpledshub.com\/bbcskyatnight\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/c01.purpledshub.com\/bbcskyatnight\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/c01.purpledshub.com\/bbcskyatnight\/wp-json\/wp\/v2\/users\/5420"}],"replies":[{"embeddable":true,"href":"https:\/\/c01.purpledshub.com\/bbcskyatnight\/wp-json\/wp\/v2\/comments?post=27282"}],"version-history":[{"count":2,"href":"https:\/\/c01.purpledshub.com\/bbcskyatnight\/wp-json\/wp\/v2\/posts\/27282\/revisions"}],"predecessor-version":[{"id":27286,"href":"https:\/\/c01.purpledshub.com\/bbcskyatnight\/wp-json\/wp\/v2\/posts\/27282\/revisions\/27286"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/c01.purpledshub.com\/bbcskyatnight\/wp-json\/wp\/v2\/media\/27285"}],"wp:attachment":[{"href":"https:\/\/c01.purpledshub.com\/bbcskyatnight\/wp-json\/wp\/v2\/media?parent=27282"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/c01.purpledshub.com\/bbcskyatnight\/wp-json\/wp\/v2\/categories?post=27282"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/c01.purpledshub.com\/bbcskyatnight\/wp-json\/wp\/v2\/tags?post=27282"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}